U.S. patent number 4,364,222 [Application Number 06/286,923] was granted by the patent office on 1982-12-21 for nut harvesting machine.
This patent grant is currently assigned to Ramacher Manufacturing Company. Invention is credited to Barry Ramacher.
United States Patent |
4,364,222 |
Ramacher |
December 21, 1982 |
**Please see images for:
( Certificate of Correction ) ** |
Nut harvesting machine
Abstract
For separating nuts from orchard trash in a windrow, the mixture
of nuts and trash is picked up and deposited on the forward end of
a foraminous conveyor enclosed by a housing connected to a fan
inducing a vigorous flow of air through the conveyor. Variously
arranged baffles, walls and guide plates direct the air rearwardly
to enhance separation capacity and form settling zones to increase
separation efficiency. Provision is also made for abruptly changing
the direction of movement of the nut and trash supporting upper run
of the conveyor to dislodge and tumble the nuts and the trash as
they traverse the separation zone where the flow of air emerges
through the upper run, thereby effecting even more rapid and
efficient separation.
Inventors: |
Ramacher; Barry (Stockton,
CA) |
Assignee: |
Ramacher Manufacturing Company
(Linden, CA)
|
Family
ID: |
23100729 |
Appl.
No.: |
06/286,923 |
Filed: |
July 27, 1981 |
Current U.S.
Class: |
56/328.1;
209/139.1; 209/147; 209/153; 56/12.8; 56/13.3; 56/DIG.8 |
Current CPC
Class: |
A01D
51/002 (20130101); Y10S 56/08 (20130101) |
Current International
Class: |
A01D
51/00 (20060101); A01D 051/00 (); A01D 046/00 ();
B07B 004/00 () |
Field of
Search: |
;56/328R,DIG.8,12.8,12.9,13.1,13.3,13.4 ;198/438,428
;209/1,21,26-29,466,492,639,643,645,136-139R,147,153 ;130/27HF |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Mancene; Gene
Assistant Examiner: Weiss; John
Attorney, Agent or Firm: Lothrop & West
Claims
I claim:
1. A nut harvesting machine for crop collection and trash
separation comprising:
a. an elongated fore and aft frame mounted on ground-engaging
wheels for advancing along a path defined by a windrowed mixture of
nuts and orchard trash;
b. a foraminous endless conveyor mounted on said frame in a fore
and aft direction, the upper run of said conveyor moving from a
forward ingress end to an after egress end;
c. means for picking up and depositing the windrowed mixture on
said forward end of said upper run;
d. a housing substantially enclosing said conveyor, said housing
including a first air vent and an air outlet and defining a channel
for the flow of air from said first air vent to said outlet;
e. a fan having a suction port and a discharge port;
f. means for collecting said fan to said housing to induce the flow
of air into said first air vent, through said channel and outwardly
through said outlet into said fan, said channel directing air
through said upper run in a nut and trash separation zone; and,
g. an elongated fore and aft plate below said upper run, said plate
forming in conjunction with said housing a fore and aft settling
zone with substantially horizontal air flow, said settling zone
being of sufficient length to allow any entrained nuts to descend
onto said upper run while lighter trash continues beyond said
settling zone into said fan and outwardly through said discharge
port to return to the ground.
2. A nut harvesting machine as in claim 1 in which said first air
vent is located underneath the forward portion of said plate, the
lower surface of said plate guiding the flow of air in a rearward
and upward direction to emerge through a first one of said
separation zones in said upper run of said conveyor, the air flow
having a velocity sufficient to lift substantially all of the trash
from said upper run, the air flow velocity being insufficient to
dislodge the bulk of the nuts which continue on said upper run to
discharge at said after egress end.
3. A nut harvesting machine as in claim 2 in which said settling
zone is located forwardly of said first one of said separation
zones so that the descending nuts are deposited on the upper run of
said conveyor ahead of said first one of said separation zones.
4. A nut harvesting machine as in claim 3 including a front
stationary air seal spanning the upper and lower runs of said
conveyor adjacent the forward end of said plate to help guide the
flow of air along said lower surface of said plate in a rearward
and upward direction.
5. A nut harvesting machine as in claim 4 including a forward air
dam located adjacent the forward portion of said housing and being
selectively pivotable between a closed position, in which said
forward air dam extends between said housing and the adjacent upper
run of said conveyor in order substantially to prevent the flow of
air into said housing, and an open position in which outside air
can flow into said housing and diminish the air flow in said
channel.
6. A nut harvesting machine as in claim 5 including first diversion
means for abruptly changing the direction of movement of said upper
run of said conveyor in the vicinity of said first separation zone,
the abrupt change in direction being effective to dislodge nuts and
trash from the supporting conveyor and thereby enhance air flow
separation of nuts from trash.
7. A nut harvesting machine as in claim 6 including a second one of
said separation zones above the upper run of said conveyor, a rear
stationary air seal spanning the upper and lower runs of said
conveyor to assist in the flow of air through said second one of
said separation zones, and a second air vent in said housing below
said second one of said separation zones, said fan inducing the
upward flow of air from said second air vent through said upper run
of said conveyor to dislodge trash and carry the dislodged trash
out of said discharge port to fall on the ground.
8. A nut harvesting machine as in claim 7 including a plurality of
arcuate deflector vanes interposed in the air flow between said
second air vent and said second one of said separation zones, and
second diversion means for abruptly changing the direction of
movement of said upper run of said conveyor in the vicinity of said
second one of said separation zones.
9. A nut harvesting machine as in claim 8 including a rearward air
dam located aft of said second one of said separation zones, said
rearward air dam being adjustable to help regulate air flow in said
housing.
10. A nut harvesting machine as in claim 1 in which said first air
vent is located forward of said plate, the upper surface of said
plate guiding the flow of air in a rearward direction over said
settling zone above said plate, said housing extending upwardly
thence forwardly from the after end of said settling zone and
terminating in said fan.
11. A nut harvesting machine as in claim 10 including a nut
discharge opening in said housing adjacent said after end of said
upper run of said conveyor, said discharge opening being small
enough in size to diminish the extent of air loss from said housing
through said discharge opening.
12. A nut harvesting machine as in claim 11 including a curved air
deflection plate mounted on said housing adjacent the after end of
said settling zone, said curved air deflection plate being
effective to intercept and redirect into said air flow channel the
crop trash separated from the nuts in said settling zone.
13. A mobile nut harvesting machine for crop collection and trash
separation comprising:
a. a fore and aft elongated mobile frame;
b. collection means mounted on the forward end of said frame for
removing a mixture of nuts and trash from the ground;
c. a foraminous conveyor having a forward ingress end to receive
the output of said collection means and an after egress end to
discharge the nuts separated from the trash;
d. a fan mounted on said frame, said fan including a suction port
and a discharge port;
e. a housing on said frame substantially enclosing said conveyor
and defining a separation chamber, said housing including at least
one air vent, the roof of said housing overlying said conveyor and
including an inlet tube connected to said suction port, the air
flow produced by said fan passing from said air vent through said
foraminous conveyor to create a separation zone where the trash is
uplifted and separated from the nuts, the air flow then passing
through an elongated settling zone above said conveyor wherein the
trash and nuts are transported in horizontal fashion for a
predetermined distance, the nuts dropping from said settling zone
upon said conveyor while the trash is carried through said settling
zone to said inlet tube and out said discharge port to the
ground.
14. A nut harvesting machine as in claim 13 including a first air
vent adjacent the egress end of said conveyor, said inlet tube
being located adjacent the ingress end of said conveyor, the air
flow passing first through said first air vent, upwardly through
said conveyor and into said separation zone, the air flow then
progressing horizontally and forwardly through said settling zone
toward said inlet tube, the airborne nuts dropping from said
settling zone upon said conveyor forwardly from said separation
zone.
15. A nut harvesting machine as in claim 13 wherein said air vent
is adjacent the ingress end of said conveyor, and said inlet tube
is adjacent the egress end of said conveyor, the air flow passing
first through said air vent, upwardly and rearwardly through said
conveyor and into said separation zone, the air flow then
progressing horizontally and rearwardly through said settling zone
toward said inlet tube, the airborne nuts dropping from said
settling zone upon said conveyor rearwardly from said separation
zone.
Description
BACKGROUND OF THE INVENTION
a. Field of the Invention
The invention relates generally to nut harvesters for collecting
nuts directly from the ground and thereafter separating unwanted
trash such as leaves, twigs, grass, and fine dirt from the
harvested crop.
More specifically, the invention is directed towards a harvester
including a more rapid and efficient air flow separator for
segregation of the crop from intermixed orchard debris.
b. Description of the Prior Art
The modern nut harvester performs the dual job first of collecting
the windrows of nuts and intermixed debris, and then separating the
nut units from the debris for immediate return of the latter to the
orchard floor. Harvester pick up mechanisms have been improved to
the point where efficient windrow collection can be performed at
relatively high harvester speeds. However, previous nut and trash
separation systems have often proved unable to keep pace with
collection mechanism at these higher speeds. As a consequence, the
nut and trash separation step continued to be the "bottleneck" of
the overall harvesting process.
Nut and trash separation mechanisms which utilize an air flow
passing transversely through a perforated conveyor, uplifting and
removing the lighter and more aerodynamically responsive trash
material, are well known in the art. The conventional scheme calls
for a centrifugal fan sufficiently powerful to create a vertical
flow passing through a portion of the foraminous conveyor. The
trash, carried upwardly from the conveyor and eventually discharged
upon the ground, is thereby separated from the relatively heavy nut
units. While this approach has worked fairly well, the conveyor
must be run slowly to ensure that all of the debris is removed. If
the air flow rate is increased in an effort to speed the separation
process, a considerable number of nuts will be carried away with
the debris and lost through the harvester's waste discharge.
SUMMARY OF THE INVENTION
The nut and trash separator embodied in the harvester disclosed
herein includes a number of features specifically directed towards
increasing the speed of material separation while maintaining a low
or negligable rate of nut loss in the process. Two embodiments of
the invention are disclosed, both of which employ a settling zone
for redeposit upon the conveyor system those nuts which have become
airborne within the air flow activated separation zone. The
recapture of these suspended nuts ensures that crop loss through
the trash or debris discharge port will be minimized.
The settling zones of both embodiments operate in substantially the
same manner. The heavier and less aerodynamically responsive nuts
descend from the generally horizontal air flow within the settling
zone to rejoin the conveyor. However, the two embodiments differ in
the particular placement of their respective settling zones.
In the first version, the settling zone overlies the foraminous
supply conveyor at a point "upstream" from a first separation zone.
In other words, the recaptured nuts are redeposited upon the crop
and trash mixture on the conveyor before the mixture reaches the
first separation zone. These nuts, in effect, are resubjected to
the separation process.
The second version is an adaptation of the settling zone principle
to a more conventional air flow separator. Here, the settling zone
also overlies the conveyor, but at a point "downstream" from the
separation zone. Therefore, the airborne nuts resettle upon the
conveyor after the separation zone, rejoining those nuts already
separated from the debris. However, both embodiments rely upon
gravity and the aerodynamic response of nut units within a
generally horizontal air flow to effect separation and nut
settling.
A second important feature centers upon the direction of air flow
within the separation zone. A vigorous air flow is applied directly
beneath selected portions of the nut harvester's foraminous supply
conveyor, lifting and removing unwanted trash. This air flow is
guided by air dams, air seals, and an air baffle to pass through
the crop-trash mixture in generally the same direction as that of
the mixture as it advances through the harvester. Transport of the
mixture upon the harvester's conveyor is thereby air-flow assisted,
augmenting the rate at which the harvester can first collect the
windrows and then, secondly, separate the crop from the trash.
Lastly, the path of the supply conveyor is sharply and downwardly
diverted at the selected separation zones to tumble the mixture.
This tumbling effect acts to expose new portions of the mixture to
the subjacent air flow passing upwardly through the foraminous
conveyor, thereby enhancing the separation process.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
FIG. 1 is a left front perspective of a nut harvester embodying the
invention herein;
FIG. 2 is a median, vertical, longitudinal, cross-sectional view of
a preferred embodiment of the nut harvester, showing the general
air flow pattern and travel path of the nut and trash mixture;
and,
FIG. 3 is an alternative embodiment of the invention, adapting the
settling zone principle to an air flow trash separator of a more
conventional design.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With particular reference to FIG. 1, the harvester of the invention
11 includes an elongated fore and aft frame 12 supported by ground
engaging wheels 13 of conventional design for transport through the
orchard. The operator typically directs the harvester 11 into fore
and aft alignment with a previously formed windrow 14 to initiate
the harvesting process. The windrow 14 includes a mixture of nuts
16, or nuts units, and debris 17, or trash. The debris 17 may have
leaves, twigs, grass, and relatively fine dirt particles included
therein, depending upon the nature and condition of the particular
orchard.
As the harvester 11 advances along the windrow 14 in a direction
indicated by the arrow 15, a pick up mechanism (not shown), located
adjacent the forward end of the harvester 11, collects the nuts and
trash from the ground. The pick up mechanism deposits the mixture
upon the forward, ingress end 18 of a foraminous, fore and aft
conveyor 19 within the harvester 11 (see FIG. 2).
While the pick up, or collection, mechanism may be of any suitable
construction the harvester pick up mechanism disclosed in my U.S.
Pat. No. 3,872,657, issued Mar. 25, 1975, has proven to be
eminently satisfactory in performing rapid, yet complete collection
of the windrow mixture.
The fore and aft conveyor 19 includes a plurality of transverse
flights 21 which successively engage respective portions of the
mixture (see FIG. 2) and transport them up an inclined portion of
the conveyor 19 into the harvester housing 22. The housing 22
generally surrounds the middle portion of the conveyor 19, and
includes a roof 23, a pair of opposing vertical side walls 24, a
curved forward wall 26, an after floor section 27 and a forward
floor section 28. A forward cover 29 abuts the forward wall 26 and
encloses the pick up mechanism and the ingress portion 18 of the
conveyor 19 (see FIGS. 1 and 2).
The housing 22 encloses and generally defines a separation chamber
25.
A pivoted, forward air dam 31 extends transversely between the
vertical side walls 24, forming an adjustable air passage between
the fan inlet tube 30, or casing, and the upper surface of the
conveyor 19. In like fashion, a pivoted, rearward air dam 32
extends transversely between the vertical side walls 24 and forms
an adjustable air passage between the roof 23 and the upper surface
of the conveyor 19. Each air dam includes a respective, rubberized
distal edge 33 to produce a reasonably tight but yieldable air seal
with the conveyor 19 and the flights 21 when the dams are placed in
their lowered, closed position, as shown in FIG. 2. The function
and selective operation of the air dams 31 and 32 will be explained
in greater detail herein.
Also extending between the vertical side walls are front and rear
stationary air seals 34 and 36, respectively. The air seals are
interposed between the upper run 37 and the lower run 38 of the
conveyor 19, and act to block air from passing from the space
between the conveyor runs into the plenum 39 at undesirable
locations.
A plurality of arcuate vanes 41, or air deflectors, extends
transversely between a pair of lateral plates 42 attached to the
opposing inner surfaces of the two side walls 24. The vanes 41 are
directed upwardly and rearwardly, as illustrated in FIG. 2, and are
disposed immediately above a rear vent 43 defined by a separation
between the after floor section 27 and the forward floor section
28.
An inclined baffle plate 44 is coextensive with and subjacent a
middle portion of the conveyor's upper run 37. The forward lower
end of the baffle plate 44 is more steeply inclined to terminate
adjacent the lower end of the forward air seal 34. A duct 46 is
thereby formed with the subjacent forward floor section 28, the
forward lower end of the duct 46 being in communication with a
forward vent 47 formed by an interruption in the forward floor
section 28, the upper end leading through the upper conveyor run 37
and then into the plenum 39. A transverse deflector plate 45
spanning the forward end of the lateral plates 42 assists in
directing the flow of air in the duct 46 upwardly and rearwardly
through the upper run 37 of the conveyor 19.
The conveyor 19 begins with a fairly steep inclination at its
ingress end 18, progresses to a more horizontal attitude in its
intermediate portion, and finally assumes an almost horizontal
posture at its egress end 48.
The lateral extremities of the conveyor 19 are supported by a
plurality of free rolling sprockets 49. While the sprockets 49 are
in conventional supporting engagement beneath the upper and lower
runs of the conveyor, a forward diversion sprocket 50 and an after
diversion sprocket 51 are located above the upper run 37 and act
sharply to direct the path of the upper run downwardly at two
critical positions (see FIG. 2). The manner in which this rapid,
downward diversion of the upper run 37 of the conveyor cooperates
with the rising air flow to effect improved separation will be
explained more fully herein.
A fan 52 includes a suction port 53, in communication with the
forward end of the plenum 39, and a discharge port 54 (see FIG. 1),
directed away from the harvester 11. When actuated, the fan 52
creates an evacuated condition within the plenum 39, thereby
establishing two primary air flow channels, one passing through the
forward vent 47 and the other passing through the rear vent 43,
both flowing into the plenum 39.
As the harvester 11 proceeds along its path over the windrow 14,
the collected mixture is passed up the foraminous conveyor 19 and
first encounters an uplifting and rearwardly directed air flow
passing through the conveyor from the duct 46. Simultaneously, the
upper run 37 is sharply detoured, or diverted, downwardly by the
first diversion sprocket 50. As a result the mixture is suddenly
unsupported and is tossed and tumbled into the air flow. The
relatively heavy nuts 16 tend immediately to resettle upon the
surface of the upper run 37 and progress farther in a rearward
direction. The debris 17, however, being relatively lighter and
more aerodynamically responsive than the nuts, is lifted upwardly
and impelled forwardly, by the air currents indicated in FIG. 2,
toward the suction port 53.
The rearward direction of the air flow through the duct 46, acting
in general concert with the established rearward direction of
travel of the mixture, enhances both the speed and the efficiency
of the separation process. In other words, a large fraction of the
nuts is immediately separated from the trash and continues on its
way to the discharge end of the conveyor.
Owing to variations in nut weight and particular position upon the
conveyor 19, however, a certain number of nuts will become
entrained in the air flow and be carried forwardly toward the
suction port 53 along with the debris 17. As indicated in FIG. 2,
while the initial vertical updraft within the first, or primary,
separation zone 56 is sufficient to uplift some of the nuts, the
subsequent horizontal forward path of the air flow cannot support
the nuts. Consequently, a settling zone 57, forward from the
primary separation zone 56, provides an area, or region, where nuts
are "recaptured", and drop out of the dominant horizontal air flow
onto the upper conveyor run 37. Since the baffle plate 44 inhibits
any upward air currents through the conveyor and into the quiescent
settling zone 57, an air current "dead space" ensures that the
dropping nuts will merely reenter the crop-trash mixture for
subsequent reseparation.
While a large portion of the trash is removed from the conveyor 19
within the primary separation zone 56, a secondary separation zone
58 is provided to ensure that solely nut units 16 will ultimately
pass from the discharge end of the conveyor 19 into the collection
bin 59.
In the secondary separation zone 58, an air flow passes through the
rear vent 43, is directed upwardly and rearwardly by the arcuate
vanes 41, and emerges into the plenum 39 after passing through the
conveyor 19. The rearward component of the air flow again promotes
separation and removal of the debris in the same direction as
conveyor travel. Once the debris has been lifted clear of the upper
surface of the upper run 37, the air flow and entrained debris 17
make a sharp reversal of direction and, as before, travel forwardly
through the plenum 39, eventually entering the settling zone 57.
The relatively few nuts 16 which may have become airborne while
passing through the second separation zone 58 are recaptured in the
settling zone 57 in a manner identical to that previously
discussed.
Additionally, the after pair of diversion sprockets 51 on either
side of the conveyor 19 thrust the path of the conveyor 19
downwardly within the second separation zone 58. This abrupt detour
in the conveyor's path tumbles and rolls the mixture and further
encourages the separation process, as previously explained.
After passing through the second separation zone 58, only nuts 16
remain upon the conveyor 19. All the trash is removed. These nuts
fall off the conveyor's discharge end 48 and drop into the
collection bin 59, normally towed behind the harvester as shown in
FIG. 1. The debris 17 passes over the inlet tube extension 61 and
into the suction port 53, and then is discharged through port 54
onto the ground. The inlet tube extension 61 also serves to deflect
any forwardly traveling nuts back upon the upper conveyor run
37.
The harvester 11 may encounter a variety of orchard conditions, and
each condition may call for variation in the operation of the
separator mechanism.
For instance, nut varieties differ in average weight, the crop or
debris may be unusually heavy, or the collected mixture could be
damp. During the early part of the harvesting season, the
relatively light nuts being harvested at the time would call for
the air dams 31 and 32 to be open, allowing air to flow into the
plenum 39 through secondary air channels overlying the upper run
37. By providing these additional air flow channels, the velocity
of the air through the first and second separation zones is
reduced, decreasing the chance of crop loss through the discharge
port 54. If the nut unit weight is extremely light, the speed of
the fan 52 can be decreased as a further measure to eliminate nut
loss.
On the other hand, if either the crop or debris is heavy or damp,
such as would be common during the latter part of the harvesting
season, maximum air flow through the primary flow channels would be
required. By closing the air dams 31 and 32 so their respective
distal edges 33 are adjacent the upper surface of the upper track
37, the air flow with the first and second separation zones will be
maximized, resulting in optimum separation of nuts and debris under
these particular conditions.
An alternative embodiment of the invention, showing the application
of the settling zone concept to a more conventional air flow
separator, is illustrated in FIG. 3. The air flow separator 66
would typically be structurally integrated with a harvester pick up
mechanism (not shown), such as that already described for the
preferred embodiment of the invention. For purposes of clarity, all
objects and structural elements herein will be designated with
different numerals than those already assigned for similar objects
and elements within the preferred embodiment.
The separator 66 generally includes a U-shaped housing 67, defining
an enclosed air flow channel 65 within which nut and debris
separation occurs.
A lower, horizontal leg 70 of the housing 67 includes an upper air
guide wall 68 and a lower air guide plate 69. The lower guide plate
69 is subjacent, parallel, and generally coextensive with the upper
run 71 of a foraminous conveyor 72, as shown in FIG. 3. The forward
ends of both the upper guide wall 68 and the lower guide plate 69
are inclined downwardly to define an air inlet port 73. A blocking
plate 74 is positioned between the upper run 71 and the lower run
76, and extends the transverse dimension of the conveyor 72. The
blocking plate 74 effectively prevents air from passing downwardly
into the air inlet port 73 from the forward, loading end 77 of the
conveyor.
A vertical, intermediate leg 75 includes a forward wall 78 and a
rear wall 79. A curved, air deflection plate 81 is attached to the
lower, inner surface of the rear wall 79 and extends the full width
of the conveyor 72. The lower edge of the plate 81 just clears the
cleats 82 of the conveyor 72.
An upper, horizontal leg 80 has a roof 83 and a floor 84, the
forward ends of which terminate in a fan inlet conduit 86. An
exhaust fan 87, in turn, is interconnected to the inlet conduit
86.
In operation, with the harvester moving in a direction indicated by
the arrow 85, the pick up mechanism deposits the mixture of nuts 88
and debris 89, or trash, upon the loading end 77 of the conveyor
72. The exhaust fan 87 draws air from the upper, forward end of the
housing 67, producing an air flow passing into the air inlet port
73 through the foraminous conveyor 72 and thence through the legs
70, 75, and 80. The inclination of the forward ends of the upper
guide wall 68 and the lower guide plate 69, coupled with the
particular placement of the blocking plate 74, directs the air flow
upwardly and rearwardly into the separation zone 91. The rearward
component of the air flow through the conveyor 72 increases the
capacity of the separator 66 to handle heavy or damp mixture of
nuts and debris.
The uplifting air entrains the lighter and more aerodynamically
responsive debris particles, thereby separating them from the nuts
being transported rearwardly upon the upper run 71 of the conveyor.
Immediately rearward from the separation zone 91, and extending to
the vertical, intermediate leg 75 of the housing 67, is a settling
zone 92. Any nuts 88 which initially become entrained in the air
flow in the separation zone 91, drop out of the flow and back upon
the upper conveyor run in the settling zone 92. The speed of the
horizontal air flow within this settling zone 92 is insufficient to
maintain the nuts 88 in an airborne state. Thus, virtually all of
the nuts have rejoined the upper run 71 as it reaches the
deflection plate 81.
The deflection plate 81 directs the air flow upwardly to carry the
debris through the remaining portion of the housing 67 for
discharge through the exhaust fan 87. A rearwardly and downwardly
curved lower lip 93 at the bottom of the rear wall 79 conforms
generally to the arcuate discharge end 94 of the conveyor, forming
a further air seal to prevent the escape of air needed to remove
the trash. The nuts 88, free of unwanted debris, pass off the
discharge end 94 of the conveyor and drop into a collector box
96.
Both embodiments of the invention provide enhanced speed of nut
separation and increased efficiency under widely variant crop
conditions.
* * * * *